Daikin VRV II RXYQ8MY1K, Service Manual

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Symptom-based Troubleshooting Si39-502A
138 Troubleshooting
Symptom Supposed Cause Countermeasure
12 Dust comes out
from the system.
Dust comes out from the
system when it restarts after
the stop for an extended period
of time. Dust, which has deposited on the
inside of indoor unit, is blown out
from the system. Normal operation.
13 Odors come out
from the system.
In operation Odors of room, cigarettes or else
adsorbed to the inside of indoor
unit are blown out. The inside of the indoor unit
should be cleaned.
14 Outdoor unit fan
does not rotate.
In operation The reason is that fan revolutions
are controlled to put the operation
to the optimum state. Normal operation.
15 LCD display "88"
appears on the
remote
controller.
Immediately after turning ON
the power supply The reason is that the system is
checking to be sure the remote
controller is normal. Normal operation.
This code is displayed for a period
of approximately one minute at
maximum.
16 The outdoor unit
compressor or
the outdoor unit
fan does not
stop.
After stopping operation It stops in order to prevent oil or
refrigerant from dwelling. Normal operation.
It stops after a lapse of
approximately 5 to 10 minutes.
17 The outdoor gets
hot.
While stopping operation The reason is that the compressor
is warmed up to provide smooth
startup of the system. Normal operation.
18 Hot air comes in
from the system
even though it
stops.
Hot air is felt while the system
stops. On multi-unit systems, tiny
quantity of refrigerant is fed to
indoor units in the stopped state
when other indoor units are in
operation. Normal operation.
19 The system does
not cool air well.
The system is in dry operation
using the microcomputer. The reason is that the dry
operation using the
microcomputer serves not to
reduce the ambient temperature
where possible. Change the system to cooling
operation.